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NVX BIR500

500-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 700-Amp Surge)

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500-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 700-Amp Surge)

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

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List price $95.99
-17% $79.99

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Used from: $85.99

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

NVX XKIT44

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 4-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

4+ offers available
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List price $155.99
-23% $119.99

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Available Offers (4) for NVX XKIT44
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Used from: $90.99

NVX XSBI500

500-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 700-Amp Surge)

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500-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 700-Amp Surge)

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

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List price $109.99
-18% $89.99

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Used from: $76.88

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

Limited time!

NVX XCAP10H (TRUE 10 FARAD CAPACITANCE)

True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

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True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

15% off an NVX XCAP10H w/ Select Amp Kits
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List price $371.99
-19% $299.99

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Buy 1 Buy a Select Amp Kit and you’ll save 15% off Get 15% off an NVX XCAP10H in your cart


• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

NVX XKIT82

Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

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Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 800 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• CEA-2015 and BC5W2 Compliant

3+ offers available
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List price $95.99
-17% $79.99

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Available Offers (3) for NVX XKIT82
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT82 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT82 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Used from: $55.99

NVX XKIT42

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

2+ offers available
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124
List price $143.99
-24% $109.99

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Available Offers (2) for NVX XKIT42
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.

NVX XKIT84

Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

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Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 800 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 4-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• CEA-2015 and BC5W2 Compliant

3+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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39
List price $107.99
-26% $79.99

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Available Offers (3) for NVX XKIT84
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.

NVX XLOC66X

6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

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6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

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-12% $89.99

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• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

Limited time!

NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

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True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

15% off an NVX XCAP1F w/ Select Amp Kits
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List price $131.99
-17% $109.99

In stock


Available Deal
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Deal Details

Buy 1 Buy a Select Amp Kit and you’ll save 15% off Get 15% off an NVX XCAP1F in your cart


Used from: $76.99

• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

NVX XKIT02

Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 4000 Watts

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Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 4000 Watts

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

2+ offers available
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List price $227.99
-21% $179.99

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Available Offers (2) for NVX XKIT02
Save 30% off an NVX XKIT02 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT02 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
Used from: $155.99

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

NVX XLCA2X

2-Channel Line Output Converter Digital Bass Enhancer with xBOOST, Impedance Matching, and Remote Level Control

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2-Channel Line Output Converter Digital Bass Enhancer with xBOOST, Impedance Matching, and Remote Level Control

• 2-Channel Speaker Level Inputs
• Adjustable xBOOST corrects for bass roll-off
• Handles up to 30V (225 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

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List price $129.99
-15% $109.99

In stock

Used from: $59.99

• 2-Channel Speaker Level Inputs
• Adjustable xBOOST corrects for bass roll-off
• Handles up to 30V (225 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

NVX SDBPRO20 PRO Stealth Black

177 mil 20 sq ft Ultra Thick Full Car Sound Deadening Kit (Five 18" x 32" Sheets) - Black

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177 mil 20 sq ft Ultra Thick Full Car Sound Deadening Kit (Five 18" x 32" Sheets) - Black

• 20 square feet ultra thick sound deadening kit
• Solid black design for any stealth car audio installation
• Material Used: Vibration Dampener
• Material Thickness: 0.17"
• Install Location: Entire Vehicle
• Pack includes five 18" x 32" sheets

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List price $143.99
-24% $109.99

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• 20 square feet ultra thick sound deadening kit
• Solid black design for any stealth car audio installation
• Material Used: Vibration Dampener
• Material Thickness: 0.17"
• Install Location: Entire Vehicle
• Pack includes five 18" x 32" sheets

Limited time!

NVX XAPK0

Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire for Amplifiers up to 4000 Watts

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Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire for Amplifiers up to 4000 Watts

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

15% off an NVX XCAP10H w/ Select Amp Kits
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List price $227.99
-25% $169.99

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Available Deal
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Shop items below for 15% off up to $100 discount on Get 15% off an NVX XCAP10H


Used from: $145.99

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

NVX SDBBP40 Premium Stealth Black

91 mil 36 sq ft Full Car Sound Deadening Kit (Nine 18" x 32" Sheets)

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91 mil 36 sq ft Full Car Sound Deadening Kit (Nine 18" x 32" Sheets)

• 36 square feet sound deadening kit
• Solid black design for any stealth car audio installation
• Material Used: Vibration Dampener
• Material Thickness: 0.091 (2.3 mm)
• Install Location: Entire Vehicle
• Pack includes nine 18" x 32" sheets

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VIP Product Get $11.50 in rewards to spend later

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List price $131.99
-13% $114.99

In stock

• 36 square feet sound deadening kit
• Solid black design for any stealth car audio installation
• Material Used: Vibration Dampener
• Material Thickness: 0.091 (2.3 mm)
• Install Location: Entire Vehicle
• Pack includes nine 18" x 32" sheets

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    All About

    NVX Car Audio Installation & Accessories
    NVX offers a large selection of carefully engineered car audio installation accessories that will make your install quick & easy!
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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.